unattended-upgrades doesn't work in Xenial

[Yaroslav Molochko]

When I login to system I get:

167 packages can be updated.
0 updates are security updates.

When I do apt-get upgrade I get:
==================
apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages were automatically installed and are no longer required:
  python-croniter python-systemd
Use 'sudo apt autoremove' to remove them.
The following packages have been kept back:
  isc-dhcp-client linux-generic linux-headers-generic linux-image-generic python-zmq
The following packages will be upgraded:
  accountsservice apt apt-transport-https apt-utils bind9 bind9-host bind9utils binutils bsdutils console-setup console-setup-linux cpp-5 dnsutils fonts-ubuntu-font-family-console
  fuse g++-5 gcc-5 gcc-5-base gcc-6-base git git-man grub-common grub-pc grub-pc-bin grub2-common info install-info isc-dhcp-common keyboard-configuration klibc-utils kmod
  krb5-locales landscape-common language-selector-common libaccountsservice0 libapt-inst2.0 libapt-pkg5.0 libasan2 libatomic1 libbind9-140 libblkid1 libc-bin libc-dev-bin libc6
  libc6-dev libcc1-0 libcilkrts5 libdns162 libfdisk1 libfuse2 libgcc-5-dev libgcc1 libgnutls-openssl27 libgnutls30 libgomp1 libgssapi-krb5-2 libirs141 libisc160 libisccc140
  libisccfg140 libitm1 libk5crypto3 libklibc libkmod2 libkrb5-3 libkrb5support0 liblsan0 liblwres141 libmount1 libmpdec2 libmpfr4 libmpx0 libpam-modules libpam-modules-bin
  libpam-runtime libpam-systemd libpam0g libpcre3 libperl5.22 libplymouth4 libpython2.7 libpython2.7-dev libpython2.7-minimal libpython2.7-stdlib libpython3-dev libpython3-stdlib
  libpython3.5 libpython3.5-dev libpython3.5-minimal libpython3.5-stdlib libquadmath0 libseccomp2 libselinux1 libsmartcols1 libstdc++-5-dev libstdc++6 libsystemd0 libtsan0
  libubsan0 libudev1 libutempter0 libuuid1 linux-firmware linux-generic-lts-wily linux-headers-generic-lts-wily linux-libc-dev locales ltrace module-init-tools mount
  multiarch-support ntpdate openssh-client openssh-server openssh-sftp-server openssl os-prober perl perl-base perl-modules-5.22 plymouth plymouth-theme-ubuntu-text python-pip
  python-pip-whl python-pycurl python-pymysql python-twisted-bin python-twisted-core python2.7 python2.7-dev python2.7-minimal python3 python3-dev python3-distupgrade
  python3-minimal python3-pip python3-pycurl python3.5 python3.5-dev python3.5-minimal systemd systemd-sysv tzdata ubuntu-minimal ubuntu-release-upgrader-core ubuntu-standard udev
  util-linux uuid-runtime vim vim-common vim-runtime vim-tiny
153 upgraded, 0 newly installed, 0 to remove and 5 not upgraded.
Need to get 249 MB of archives.
After this operation, 30.7 MB disk space will be freed.
====================

When I execute
-----
sudo unattended-upgrades --dry-run --debug
-----
it shows me:
----
No packages found that can be upgraded unattended and no pending auto-removals
----
I've tried default config, without "blacklist", the message is the same.

Description: Ubuntu Xenial Xerus (development branch)
Release: 16.04

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: unattended-upgrades 0.90
ProcVersionSignature: Ubuntu 4.4.0-11.26-generic 4.4.4
Uname: Linux 4.4.0-11-generic x86_64
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
Date: Fri Mar 25 16:23:26 2016
InstallationDate: Installed on 2016-02-23 (31 days ago)
InstallationMedia: Ubuntu-Server 14.04.4 LTS "Trusty Tahr" - Release amd64 (20160217.1)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_US:en
 TERM=rxvt-256color
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: unattended-upgrades
UpgradeStatus: No upgrade log present (probably fresh install)

[Haw Loeung (hloeung)]

"""
0 updates are security updates.
"""

I think by default unattended-upgrades only does security updates. e.g. from running --dry-run --debug:

"""
Starting unattended upgrades script
Allowed origins are: ['o=Ubuntu,a=xenial-security']
pkgs that look like they should be upgraded:
"""

[Jarno Suni (jarnos)]

Yes, change i.e. uncomment '// "${distro_id}:${distro_codename}-updates";' to
'"${distro_id}:${distro_codename}-updates";' in /etc/apt/apt.conf.d/50unattended-upgrades to include regular updates.